Stereo Amplifiers Bozeman MT

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Studio A/V, Inc.
(406) 586-5593
P. O. Box 3220
Bozeman, MT
Services
Audio / Video, Home Automation / Systems Integration / Home Networking, Home Theater, Multi-Room Audio, Wire and Cable / Power Management
Brands
Denon, Triad, Boston, Parasound, DirecTV, Middle Atlantic, Sony, NEC, Sharp, Panasonic, Surge X, Chief
Certifications
One or more employees at this company have achieved CEDIA Professional Certification status:- Tim Bradley, CEDIA Certified Professional EST II- Joe Polasik, CEDIA Certified Professional EST II

Vann''s Inc.
(406) 556-6600
3400 Laramie Drive
Bozeman, MT
Services
Home Audio, Design & Installation

Northwest Audio Video LLC
(406) 297-2533
po box 2063
Eureka, MT
Services
Audio / Video, Home Automation / Systems Integration / Home Networking, Home Theater, Multi-Room Audio, Multi-Room Video
Brands
Integra,Sonance,Control 4, Elan, PSB, Escient, Sonos
Certifications
One or more employees at this company have achieved CEDIA Professional Certification status:- Mike Hansen, CEDIA Certified Professional Designer

P.E.T.E.S., Inc.
(406) 543-3086
2407 Harve Ave.
Missoula, MT
Services
Audio / Video, Environmental Controls, Furnishings, Home Automation / Systems Integration / Home Networking, Home Theater, Lighting Control, Multi-Room Audio, Multi-Room Controls, Multi-Room Video, Home Networking, Home Health, iPhone / iPad integration
Brands
Integra Sony Lutron Homeworks Control4 Samsung Toshiba Russound ONQ JBL Boston Accoustics Peerless Infinity iPORT LG Mirage Tech Craft Universal Remote Control RTi Wi-Ex
Certifications
One or more employees at this company have achieved CEDIA Professional Certification status:- Eric Petersen, CEDIA Certified Professional EST II

Vann''s Inc.
(406) 541-6000
3623 Brooks Avenue
Missoula, MT
Services
Home Audio, Design & Installation

Big Sky HTI
(406) 570-7767
34 W. Kimberly Ct.
Bozeman, MT
Services
Audio / Video, Home Automation / Systems Integration / Home Networking, Home Theater, Multi-Room Audio, Wire and Cable / Power Management
Brands
ChannelVision, Colorado vNet, D-Link, Definitive Technology, Gefen, Harmony, Monster, Niles, NuVo, Onkyo, Panasonic, Russound, Samsung, Sanus, Sharp, Sonance, Toshiba, VuTec
Certifications
One or more employees at this company have achieved CEDIA Professional Certification status:- Jeff Townsend, CEDIA Certified Professional EST II

Smart Home Systems Inc.
(406) 388-0676
112 Laura Louise LaneSte 1
Bozeman, MT
Services
Home Automation / Systems Integration / Home Networking, Home Theater, Lighting Control, Multi-Room Audio, Security / Access Control / Surveillance / Gate Access
Brands
Lutron,Crestron,ADA,Integra,RBH,James Loudspeaker,Speakercraft,Acoustic Innovations,Kaleidescape,JVC,Panasonic Phones,Ge Security,Kalatel,Furman,Runco
Certifications
One or more employees at this company have achieved CEDIA Professional Certification status:- Ronald Young, CEDIA Certified Professional EST III (Advanced EST), CEDIA Certified Professional EST II

Vann''s Inc.
(406) 257-9530
2185 Highway 2 East
Kalispell, MT
Services
Home Audio, Design & Installation

Vann\'s - Bilings
(406) 652-5100
2647 King Ave West
Billings, MT
 
Vann\'s - Helena
(406) 442-4500
2019 Cromwell - Dixion Ln.
Helena, MT
 

pass250

POSITIVE FEEDBACK ONLINE - ISSUE 6

pass labs

X250 stereo amplifier

as reviewed by Mark Katz

pass9.jpg (35267 bytes)

Photos taken by Dave Clark in his system

   

The Pass X250 is the 2nd from the bottom of the Pass X series amp line. The smallest is the not so small X150, at 150 watts/channel and at the top are the 1000 watt per monobloc X1000 amps. These amps succeed the excellent Aleph series. The X250 weighs in at 100 pounds, but can be carried by two people with the help of the rear mounted handles. The front has a circular power switch and an attractive blue glowing meter that I believe conveys how much current the amp needs to draw. Wing-like protrusions that can be used as handles surround the meter and the whole amp has a brushed silver look. The back of this rather hefty stereo amp sports both single ended and balanced inputs and clever, large binding posts that are very easy to hand tighten. The binding posts are good for spades, but can’t be used on bananas since there’s nowhere to plug them. Also on the back is the obligatory IEC receptacle for the power cord, and the main power switch. The amp’s operation is intuitive. The manual gives the Nelson Pass design philosophy of low noise, very low distortion, achievable with only 2 stages of amplification and low global feedback using "Supersymmetry" and balanced circuitry. His discussion of distortion minimization makes good reading – in the user’s manual http://www.passlabs.com/pdf/x250man.pdf . Of course, the proof is in the implementation

pass8.jpg (36466 bytes)

I unplugged the Kora Cosmos amps and plugged the Pass X250 directly into a dedicated 20 amp outlet using a fairly hefty Tiff power cord. The rest of the system used included a CEC TL1 transport with Marigo Signature digital interconnect into an Audio Magic modified Kora Hermes 192/24 tubed DAC, Kora Eclipse tubed preamp hooked together with Goertz Triode interconnects. The amp drove the JM Labs Mezzo Utopias, a fairly flat 4 ohm, efficient load through shot-gunned (one run on each terminal) Kimber 8TC. The low powered equipment was plugged into an API Powerwedge 116 II, with the preamp into a non transformer filtered outlet. The amp changed the character of my system. Gone was the seductive sound of the Kora Cosmos, in came POWER. The first thing I noticed was a sense of the music becoming more dynamic. On my speakers, it seemed effortless and amazingly energetic. It sounded as if the dynamics of the performances were brought closer to the original. With the possible exception of very high efficiency horn speakers, dynamics of the music reproduced is markedly diminished compared to the original. Many people deride this type of speakers for poor tonal balance and a honky, "cupped hand" sound and with a few exceptions, they’re right. Despite this they can convey lively dynamics that would otherwise be far more compressed on more "audiophile approved" speakers....

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